首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   26904篇
  免费   574篇
  国内免费   1篇
财政金融   5092篇
工业经济   1897篇
计划管理   4084篇
经济学   5979篇
综合类   409篇
运输经济   218篇
旅游经济   507篇
贸易经济   4185篇
农业经济   1394篇
经济概况   3640篇
信息产业经济   2篇
邮电经济   72篇
  2021年   172篇
  2020年   303篇
  2019年   498篇
  2018年   609篇
  2017年   642篇
  2016年   623篇
  2015年   360篇
  2014年   664篇
  2013年   2787篇
  2012年   839篇
  2011年   946篇
  2010年   786篇
  2009年   886篇
  2008年   830篇
  2007年   733篇
  2006年   648篇
  2005年   558篇
  2004年   569篇
  2003年   523篇
  2002年   577篇
  2001年   493篇
  2000年   491篇
  1999年   464篇
  1998年   455篇
  1997年   467篇
  1996年   448篇
  1995年   387篇
  1994年   400篇
  1993年   436篇
  1992年   440篇
  1991年   415篇
  1990年   349篇
  1989年   319篇
  1988年   306篇
  1987年   312篇
  1986年   322篇
  1985年   493篇
  1984年   454篇
  1983年   419篇
  1982年   390篇
  1981年   366篇
  1980年   408篇
  1979年   336篇
  1978年   281篇
  1977年   274篇
  1976年   210篇
  1975年   253篇
  1974年   202篇
  1973年   191篇
  1972年   135篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
Although there is a pervasive anti‐failure bias in society, we investigate why some entrepreneurs who fail are evaluated more harshly than others. Building on attribution theory and the literatures on prejudice, pro‐social intentions, and perspective taking, we offer an evaluation model of entrepreneurial failure and test this model on 6,784 assessments made by 212 observers. We find that variance in the harshness of failure evaluations depends on both the attributes of the entrepreneur and the attributes of the observer, and the interaction between the two. Specifically, entrepreneurs who are homosexual are evaluated more harshly by some observers and entrepreneurs who use environmentally friendly technology are evaluated less harshly. Moreover, observers high in perspective taking are more ‘lenient’ in their failure evaluations of those who use environmentally friendly technology than those low in perspective taking.  相似文献   
993.
Capital‐labour substitution and total factor productivity (TFP) estimates are essential features of many economic models. Such models typically embody a balanced growth path. This often leads researchers to estimate models imposing stringent prior choices on technical change. We demonstrate that estimation of the substitution elasticity and TFP growth can be substantially biased if technical progress is thereby mis‐specified. We obtain analytical and simulation results in the context of a model consistent with balanced and near‐balanced growth (i.e. departures from balanced growth but broadly stable factor shares). Given this evidence, a constant elasticity of substitution production function system is then estimated for the US economy. Results show that the estimated substitution elasticity tends to be significantly lower using a factor‐augmenting specification (well below one). We are also able to reject conventional neutrality forms in favour of general factor augmentation with a non‐negligible capital‐augmenting component. Our work thus provides insights into production and supply‐side estimation in balanced‐growth frameworks.  相似文献   
994.
In the second half of 2009, the entire media agenda in Germany was dominated by the swine flu, next to the German Federal Parliament elections. Criticism was voiced in the media against the pharmaceutical industry for lobbying the nationwide swine flu vaccination, which was widely considered nothing but a product of the industry’s lobbying power. In order to avoid the usual interviews with lobbyists, we attempted to apply a new methodological framework approach in analysing lobbying processes and key stakeholders in the public sphere—and outside. Crucial to the diversified approach, which involves quantitative content analysis of media coverage and press releases, are interviews with journalists, lobbyists’ network analysis and internet research on biographies. Although a conspiracy could not be conclusively proven, the results do indicate associations that validate the criticism of the industry’s lobbying activities.  相似文献   
995.
In this paper we discuss how repetition of a single statement affects its perceived credibility. Using an experimental design, our results support previous psychological studies on the “truth-effect”, which have shown that repeated messages are considered more credible than non-repeated messages. In addition, our study sheds light on the unanswered question why the truth-effect vanishes or reverses if statements are repeated too often. Analysis strongly points to a parallel, indirect negative effect, caused by participants showing reactance as a consequence of repetition.  相似文献   
996.
This paper reports on a questionnaire survey about share valuation practices among investors and their intermediaries in Saudi Arabia. The findings suggest that fundamental analysis is used most by investor respondents where a P/E multiple is applied to an earnings forecast to generate a prediction of future price. However, technical analysis is also used to a much greater extent than in developed markets. Finally, the results indicate that quarterly and annual reports as well as newspapers are widely consulted by investors when forming their expectations about share valuations.  相似文献   
997.
998.
999.
Increased academic attention on the gendering of leisure pastimes in recent years has highlighted the centrality of the gendered body in influencing how leisure is accessed, experienced and transformed. To date, however, little attention has been paid to how women experience aquatic leisure activity, the second most popular form of leisure activity in the UK, and where female participation predominates. This paper presents results from research investigating the aquatic leisure experiences of 22 women, with children aged under 3, in the North-East of England. A number of key themes emerged from the data, which highlighted the centrality of the gendered, lived body as a key social construct contouring participant perceptions in the swimming pool environment. Women reflected upon their self-perceived physical deficiencies when wearing revealing swimming costumes, particularly under the critical gaze of ‘other’ bodies, whether present or imagined. The co-presence of other bodies was also central in shaping lived experiences, and the presence of ‘dependent’ children’s bodies shifted bodily intentionality away from the self towards perceived maternal responsibilities and the management of perceived risks, including ‘dirt’ and ‘germs’ and the negotiation of the tacit rules of the swimming pool. Results also suggest that the emphasis on maternal responsibility in aquatic leisure activity and timing of parent-toddler sessions could lead to reproduction of gender inequalities and the exclusion of some fathers from participation.  相似文献   
1000.

A phenomenological framework guided data collection and analysis of the prevalent influences on attitudes and behaviors of elementary, junior, and secondary school students towards their physically active leisure. Twenty-two students participated in individual in-depth interviews. Parental influence and outdoor play effected choice and level of physically active leisure for elementary students. Opportunities for organized and non-structured physically active leisure and friends were significant for junior students. Academic responsibilities and organized physically active leisure were influential for secondary students. Common threads were parental influence and the belief that the students were too old to start new activities. These findings highlight the importance of providing opportunities in safe environments for children and youth to participate in a variety of structured and non-structured forms of physically active leisure.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号